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Comets, Asteroids and Meteors

Comets, Asteroids and Meteors. Chapter 20. A loose collection of ice, dust and small rocky particles Orbits are very long and narrow ellipses Comprised of 2 parts: Head and Tail Originate from either Kuiper belt or Oort cloud. Comets. Two Parts: Head and Tail

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Comets, Asteroids and Meteors

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  1. Comets, Asteroids and Meteors Chapter 20

  2. A loose collection of ice, dust and small rocky particles • Orbits are very long and narrow ellipses • Comprised of 2 parts: Head and Tail • Originate from either Kuiper belt or Oort cloud Comets

  3. Two Parts: Head and Tail • Comet’s Head: Comprised of Coma and Nucleus • Brightest part of comet • Nucleus is the solid inner core • Coma: Clouds of gas and dust • Coma created by Suns energy • Comet Tail: Sun heats up gas and dust of comet creating tail • Tail always points away from Sun Anatomy of a Comet

  4. Comet

  5. Comet

  6. Comet

  7. Comet in orbit

  8. Asteroids: rocky objects too small to be considered Planets • Revolve around Sun between Mars and Jupiter • Asteroid Belt Asteroids

  9. Asteroids

  10. Asteroids

  11. Asteroids

  12. Meteoroids: Chunks of rock or dust in space • Come from comets or asteroids • Meteor: Created as a meteoroid enters the atmosphere • Meteorite: Meteoroids that pass through atmosphere and hit Earths Surface Meteoroids

  13. Meteor

  14. Meteor Shower

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